James



(N0 ModeL) J. C. ANDERSON &3F. H. LATIMIi'IR.

BOILER ASH PAN.

Patented Apr. 7, 1885.

S E N, T I W ATORS;

UNITED STATES PATENT OFFICE.

JAMES C. ANDERSON AND FRANK H. LATIMEB, OF XVINNIPEG, MANITOBA,

CANADA.

BOILER ASH-PAN.

SPECIFICATION forming part of Letters Patent No. 315,215, dated April 7,1885.

Application filed September 13, 1884. (No model.)

To all whom it may concern:

Be it known that we, JAMES C. ANDERSON and FRANK H. LATIMER, both ofWinnipeg, in the Province of Manitoba and Dominion of Canada, haveinvented new and useful Improvements in Boiler Ash-Pans, of which thefollowing is a full, clear, and exact description.

Our improvements relate to ash-pans of locomotive and other boilers, andhave the object to insure an even draft of air and its distributionwhere most effective. To that end we employ air-chambers and withthemslats that can be closed to form a tight bottom to the pan, all ashereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicate cor.-responding parts in all the figures.

Figure 1 is aperspective view of an ashpan with our improvements, oneair-chamber and a portion of the other being removed. Fig. 2 is across-section of the pan, and Fig. 3 is a detail side view showing thelever for operating the slats. Fig. 4 is a perspective view of one slat,and Fig. 5 is a detail view.

A is the pan, formed with air-chambers B at its ends, to which air isadmitted by dampers O.

D are the air-chambers, extending from end to end of the pan andconnected at their ends to the partitions, forming the spaces B. Theends of chambers D are preferably madefia-ring to increase the draft.The sides of chambers D are formed by sheet-metal plates, strengthenedby internal brackets, a, that also serve to support hoods E, above theopen tops of the chambers.

F are slats journaled at their ends in the sides of the pan, so as toswing upward against the lower edge of the pan, and thus form a tightbottom thereto, and also to swing down for discharge of ashes. To eachslat abraced arm, I), is attached by lugs d on the slat, Fig. 4, and theseveral arms 11 are jointed at their upper ends to a rod, 6. Arock-shaft, f, connected to rod 6, forms the axis at one end of onemiddle slat and extends through the side of the pan, where it isprovided with a lever or handle, 57, carrying an adjustable weight.

It represents a rod for working the lever from a convenient place. Theobject of the weight is to throw the lever over to either side from avertical position to open and close the slats; but, if desired, theclosing may be done auto matically whenever the lever is left free. Thearms Z) and rod 6 are within one air-chamber, D, for protection, andthere may be a second set in the other chamber, if desired. Theairchambers D insure an even distribution of the air under the fire anda supply of air to the fire near the water-spaces of the boiler, (shownat 1,) where the fire is most effectual. The draft is partially warmedfrom the ashes in the pan, and, being also more evenly distributed underthe grate-bars, lessens their liability to warp; but the incoming airdoes not strike the hot cinders, and so is not deprived of its oxygennor mixed with carbonic-acid gas. The hoods, besides spreading the air,

keep out ashes and cinders from the air-chambers, and hence a strongdraft will not carry up fine ashes, which havea tendency to choke thefire.

The slats F may be opened in startingafire. Usually they are to be keptclosed to retain the ashes until a suitable place for discharge isreached. The slats serve to exclude snow from the pan, and if left openaccidentally they would be closed by contact with a snow bank andretained by the weighted lever.

e are aware that it is not broadly new to A provide an air-supply pipelocated beneath the grate-bars of a furnace with a deflector, and we donot claim such as of our invention, broadly.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. The combination, with the ash-pan, of air-chambers D, extending fromone end of the pan to the other, and hoods E, supported above andextending the entire length of said chambers, substantially as setforth.

2. The combination, with the ash-pan A, provided with transverse endair-spaces and dampers B C, of the longitudinal air-chambers D,connected at their ends with the spaces B, and having the hoods E,supported above them throughout their entire length, as described.

3. The combination, with the ash-pan, of 5. The combination, with anash-pamof the the air chambers D, provided with the hinged slats F,fitted for operation by arms 11 strengthening-brackets a, extendingabove and rod 0, contained in the air-ehamber, as [5 their uppersnrface,and the hood E, supported specified.

5 by said brackets.

4. The combination, with the ash-pan A, of JAMES C. ANDERSON. the slatsF, journaled at their corners in the FRANK H. LATIMER. sides of the pan,and lugs d on the said slats, rod 6, Ashaped arms 1), connecting the rod6 Witnesses:

10 and the slats, as shown, and the operating- A. GALLANDER,

shaft f and lever, all constructed and arranged CHARLES L. SHAW.substantially as set forth.

